<div class="page-content">
  <div class="widget-box">
    <div class="widget-header widget-header-flat widget-header-small">
      <h5>
        <i class="icon-signal"></i> 访问来源
      </h5>
    </div>

    <div class="widget-body">
      <div class="widget-main">
        <div id="echars-bar" style="height: 400px;"></div>
      </div>
    </div>
  </div>
</div>